Available since version: Gideros 2012.09.3
Sets the pitch relative to the pitch of the original sound channel.
Default pitch is 1.
Setting pitch as 0.5 will make the pitch lower
Setting pitch as 1.5 will make the pitch higher
You cannot set the pitch of a background music (mp3).
- pitch: (number) pitch relative to original (1 < - higher pitch, 1 > 0 lower pitch)